I'm not sure why it's so weird about IRQs. Also I would triple check ALL solder joints. I wonder what's wrong that so much software crashes with IRQ not 2.? Are you sure that the card itself is completely ok?ĮDIT: C92 looks crooked. I'll continue to troubleshoot and share anything I found out here.Įdit: SBDIAG successfully plays digital audio with IRQ set to 2, 3, 5, and 7 as long as I configure the card to match in the system setup. I think there is an IRQ conflict but I haven't been able to resolve it so far, even by removing all other MCA cards from the system.
#Simcity 2000 open source driver
Only IRQ 3, 5, and 7 are supported by the SB MCA driver (sbmwu.exe) so I can't try IRQ 2 which works for Doom. Windows 3.11 locks up immediately after the startup sound plays. Simcity 2000 (DOS) locks up during installation when detecting the sound card no matter what IRQ settings are used. All other IRQ settings result in a "Transfer stack overflow" and lock up. Trying to use digitized audio is when I ran into issues.ĭoom works with SFX and music using address 220, IRQ 2, DMA 1. I had no issues whatsoever with several games. I did testing with both Dos 6.22 and Windows 3.11Īdlib games seem to work just fine under DOS. Its got a 486 DX-2 50mhz, 8MB ram, and also a Buslogic BT640 SCSI card and an IBM XGA-2 display card installed. I used a guide found here: … i-xc3sprog.html (not affiliated) I was able to program it using a Raspberry Pi and XC3sprog with the GPIO pins. It's definitely doable without a hot air station if you use liquid flux, a good chisel tip on the iron, and solder braid to clean up bridges. I built one of these cards, so I signed up for the forum here to share my experiences.
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